Improvement in car-doors



VG. L. WAIT!!! CAR-DOOR.

No.188,994. Patented March 27,1877.

Znwezzian Z/'inesses.

N- PETERS, PHOTD-UTHOGRAFHER, WASHINGTON D C ITED STATES PATENT OFFICE.

GEORGE L.-'WA1TT, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO SAMUEL L. GARRETT, 0F SAME PLACE.

IMPROVEMENT IN CAR-DOQRS.

Specification forming part of Letters Patent No. 188,994, dated March 27, 1877; application filed September 18, 1876.

To all whom "it may concern Be it known that I, GEORGE L. WAITT, of the city. and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in Oar-Doors, which improvement is fully set forth in the following specification and accompanying drawing, in which- Figure 1 is a broken section of a'door with my improvement applied. Fig. 2 is a perspective view of a grooved shoe, forming part of myinvention. Fig. 3 is a transverse vertical section of my invention. Fig. 4 is a perspective view of one of the plates used in my invention.

My present invention relates to an improvement on Letters Patent No. 114,731, granted to me under date of May 9, 1871; and it consists in forming the shoe without the project'- ing ears or flanges shown in said patent, and substituting adjustable side plates, with projecting studs on their inner sides to form bearings for the friction-rollers.

The object in making the side plates separate from the shoe is to enable them to be shifted on the shoe to suit any size door, and

' to enable a hollow axle to be used, instead of a 'solid one, in order to save drilling or riveting.

The shoe 0, which is provided with elongated slots 0 c, is fastened to the lower edge of a car or other door by means of the screws 0 c. A

A are friction-rollers, inserted in recesses formed in the lower part of the door, and projecting through the slots 0 c in the shoe. I I areadjustable side plates, fastened to the shoe and provided on their inner surfaces with cylindrical studs a a. The friction-rollers A A are each provided with a bushing, a, which is journaled upon the studs a a of the plates 1 I. In using the studs a a as an axle, a separate pin is dispensed with, and all drilling and riveting avoided. The slots 0 c in the shoe are made ofsufflcient length to permit the plates I I, carrying the rollers, to be shifted on the shoe, by which means the position of the rollers may be arranged to suit diflerent width of doors. The rollers A A rest upon a rail, D, which enters the groove in the shoe 0.

Having thus described my invention, what 1 claim as new, and desire to secure by Letters Patent, is-

The adjustable side plates I I, provided with the cylindrical studs a, a, in combination with the bushing a, roller A, grooved shoe 0, and elongated slots 0 0, substantially as herein shown and described.

G. L. WAITT.

Witnesses S. P. IFILL, J OHN W. ToMLINsoN. 

